Currently we suggest that folks dual publish to both npm + gpr.
There are a large number of edge cases related to doing this and IMHO it is
not the best practice. Let's make two separate workflows.
The setup-node action will default the scope to the correct user (the repo owner), so we do not need to explicitly include it in the workflow. Removing it ensures that the starter template is easier for people to use; now there are no changes necessary to get started. https://github.com/actions/setup-node/blob/master/src/authutil.ts#L26